Table 3.
Pre- and postoperative clinical parameters
| Parameters | Total (n = 36) | Decompression, 21–60 days (n = 18) (Group I) | Decompression, 60–89 days (n = 11) (Group IIa) | Decompression, ≥ 90 days (n = 7) (Group IIb) | P value |
|---|---|---|---|---|---|
| Patients treated with preoperative steroids (no, %) | 19 (52.8) | 11 (61.1) | 6 (54.5) | 2 (28.6) | P = 0.4130 |
| Preoperative EMG (no, %) | 11 (30.6) | 5 (27.8) | 4 (36.4) | 2 (28.6) | P = 0.8810 |
| Preoperative ENoG (no, %) | 13 (36.1) | 7 (38.9) | 4 (36.3) | 2 (28.6) | P = 0.8900 |
| Delay before surgery (Mean days, range) | 63 (21–205) | 38 (21–57) | 68 (62–79) | 127 (90–205) | |
| Initial Facial Function (HB mean, ± SD) | 5.7 ± 0.6 | 5.7 ± 0.6 | 5.6 ± 0.7 | 5.7 ± 0.5 | P = 0.5200 |
| Final Facial Function (HB mean, ± SD) | 3.3 ± 0.9 | 3.2 ± 0.7 | 2.9 ± 1.0 | 4.0 ± 0.8 | P = 0.0772 |
| Simple Functional Gain (mean gain, ± SD) | 2.4 ± 1.0 | 2.4 ± 1.0 | 2.8 ± 0.8 | 1.7 ± 1.1 | #P = 0.0293 |
| Weighted Functional Gain (mean gain, ± SD) | 1.7 ± 0.9 | 1.7 ± 0.8 | 2.1 ± 1.0 | 1.0 ± 0.8 | *P = 0.0314 |
| Final HB score 3 or better (no, %) | 22 (61.1) | 11 (61.1) | 9 (81.8) | 2 (28.6) | **P = 0.049 |
| Final HB score 2 or better (no, %) | 6 (16.7) | 3 (16.7) | 3 (27.3) | 0 (0) | P = 0.3531 |
No number
% percentage
SD standard deviation
HB House-Brackmann score
#Statistical significance, simple functional gain between Group IIa (decompression 60–89 days) and Group IIb (≥ 90 days) in Mann-Whitney test (p = 0.0293)
*Statistical significance, weighted functional gain between Group IIa (decompression 60–89 days) and Group IIb (≥ 90 days) in Mann-Whitney test (p = 0.0314)
** Statistical significance, final HB score 3 or better between Group IIa (decompression 60–89 days) and Group IIb (≥ 90 days) in Fisher exact test (p = 0.049)